diff -r 8492c6293c31 -r acc4047c2194 mercurial/linelog.py
--- a/mercurial/linelog.py	Wed Nov 06 14:10:09 2019 -0500
+++ b/mercurial/linelog.py	Wed Nov 06 14:11:29 2019 -0500
@@ -53,7 +53,7 @@
         return iter(self.lines)
 
 
-class _llinstruction(object):
+class _llinstruction(object):  # pytype: disable=ignored-metaclass
 
     __metaclass__ = abc.ABCMeta